{
  "id": "0710.3581",
  "version": "v1",
  "published": "2007-10-18T19:39:17.000Z",
  "updated": "2007-10-18T19:39:17.000Z",
  "title": "Discrimination between evolution operators",
  "authors": [
    "T. Vértesi",
    "R. Englman"
  ],
  "comment": "7 pages, 2 figures, REVTeX",
  "journal": "Phys. Rev. A 76, 042322 (2007)",
  "doi": "10.1103/PhysRevA.76.042322",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Under broad conditions, evolutions due to two different Hamiltonians are shown to lead at some moment to orthogonal states. For two spin-1/2 systems subject to precession by different magnetic fields the achievement of orthogonalization is demonstrated for every scenario but a special one. This discrimination between evolutions is experimentally much simpler than procedures proposed earlier based on either sequential or parallel application of the unknown unitaries. A lower bound for the orthogonalization time is proposed in terms of the properties of the two Hamiltonians.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-10-18T19:39:17.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.-a",
      "03.65.Ta"
    ],
    "keywords": [
      "evolution operators",
      "discrimination",
      "orthogonalization time",
      "broad conditions",
      "lower bound"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2007,
      "month": "Oct",
      "volume": 76,
      "number": 4,
      "pages": "042322"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007PhRvA..76d2322V"
    }
  }
}